Fig. 6From: Multivariate analysis of energy dispersive X-ray diffraction data for the detection of illicit drugs in border controlParcel prediction concentration maps. Transmission images (left) and diamorphine concentration maps (right) of three analysed parcels: a Parcel 1: 73% purity diamorphine sample with unknown cutting agent. b Parcel 2: pure sample of sodium bicarbonate. c Parcel 3: 69% purity diamorphine sample with unknown cutting agents located middle right and top left, and 3 DVDs located bottom leftBack to article page